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Rationale, design, and statistical analysis plan for a randomized, double-blind, placebo-controlled trial of Limosilactobacillus reuteri to support mother-infant bonding and maternal socioemotional functioning in postpartum women at increased risk for postpartum depression.

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Correction: Nazarloo et al. Oxytocin, Vasopressin and Stress: A Hormetic Perspective. <i>Curr. Issues Mol. Biol.</i> 2025, <i>47</i>, 632.

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Love and longevity: A Social Dependency Hypothesis.

Alexander J Horn1, C Sue Carter2

  • 1University of Utah, United States.

Comprehensive Psychoneuroendocrinology
|June 27, 2022
PubMed
Summary
This summary is machine-generated.

Social bonds and parental care enhance mammalian longevity. The Social Dependency Hypothesis suggests natural selection favors longer lives for caregivers, with oxytocin playing a key role.

Keywords:
EvolutionLongevityOxytocinParental careSociality

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Area of Science:

  • Evolutionary Biology
  • Neuroendocrinology
  • Mammalian Physiology

Background:

  • Mammalian survival and reproduction depend on sociality and parental investment.
  • Social bonds, including those akin to "love," correlate with improved health and longevity in mammals.
  • Existing evidence links social behaviors to positive health outcomes.

Purpose of the Study:

  • To propose the Social Dependency Hypothesis of Longevity.
  • To investigate the role of oxytocin in linking parental investment to longevity.
  • To explore the cellular, physiological, and behavioral mechanisms involved.

Main Methods:

  • Review of evidence linking social behaviors to health and longevity in mammals.
  • Examination of the neuropeptide oxytocin's role in parental investment and longevity.
  • Analysis of oxytocin's physiological effects, including antioxidant and anti-inflammatory properties.

Main Results:

  • The Social Dependency Hypothesis posits that natural selection favors longer, healthier lives in individuals with enhanced caregiver roles.
  • Oxytocin is highlighted as a potential molecular link between parental investment benefits and longevity.
  • Oxytocin's pleiotropic actions, including HPA axis and autonomic nervous system regulation, are implicated.

Conclusions:

  • Social dependency and parental care are significant factors in mammalian longevity.
  • Oxytocin may be a crucial mediator in the relationship between social bonds, caregiving, and extended lifespan.
  • Further research into oxytocin's role could elucidate species-specific and individual longevity potential.